CVE-2026-101904
Axios: Header Injection via Inherited headers After Minimal Interceptor
Axios is a promise-based HTTP client for the browser and Node.js. From 1.0.0 until 1.20.0, the dispatchRequest function normalizes inherited Object.prototype.headers from a replacement request configuration. A separate same-process prototype-pollution flaw sets Object.prototype.headers, and trusted request interceptors return a new ordinary configuration without an own headers property. After the interceptor chain, dispatchRequest resolves the inherited headers during normalization. Downstream request processing can observe attacker-controlled headers, including authorization-related values. This issue is fixed in version 1.20.0.
| CWE | CWE-74 CWE-1321 |
| Vendor | axios |
| Product | axios |
| Published | Sep 28, 2026 |
| Last Updated | Sep 28, 2026 |
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